CN100481983C

CN100481983C - Mobile communication device, mobile router, and mobile communication system

Info

Publication number: CN100481983C
Application number: CNB2003801004349A
Authority: CN
Inventors: 小林广和; 松本泰辅; 川原丰树; 船引诚; 池田新吉
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2002-10-10
Filing date: 2003-10-09
Publication date: 2009-04-22
Anticipated expiration: 2023-10-09
Also published as: CN1692669A

Abstract

A mobile communication device includes: a service type recording section (205) for recording characteristic of a service used by the mobile communication device; and an interface recording section (206) for recording the external connection interface type in the network and the characteristic. An interface decision section (207) selects at least one interface satisfying the service request and this is reported to a mobile router having an external connection interface. Thus, even when a change has occurred in the link state of the external interface of the mobile router, the mobile communication device can rapidly switch the external interface so as to continue the communication and can evade communication congestion between the mobile communication device and the mobile router during switching.

Description

Mobile communication equipment, mobile router and mobile communication system

Technical field

The present invention relates to a kind of mobile router that is used to realize based on network motion, and be provided at mobile communication equipment in this mobile router, particularly relate to a kind of mobile communication equipment, mobile router and mobile communication system, the information that this mobile communication system is handled according to mobile communication equipment adopts the most suitable external interface that is connected with network.

Background technology

Recently, personal network's equipment constantly expansion along with the development of cellular phone network and WLAN.In this case, consider ubiquitous network (ubiquitous network), this ubiquitous network will all be formed networks to realize access whenever and wherever possible on every side.For example, it has been disclosed in report document " Study Group onthe Future Overview of Ubiquitous Network Technology "-toward realizing anetwork with anything at everywhere, June 11 2002, Information ﹠amp; Communication Policy Bureau of Ministry of General Affairs, Press Release, the internet location is＜URL:http: //www.soumu.go.jp/s-news/2002/02061 1#.html 〉.Usually, different mobile communication system has been proposed so that realize such ubiquitous network.

Figure 41 is the figure that is illustrated in the mobile communication system configuration of narrating among the JP-A-2000-13823.

In Figure 41, allow mobile comm unit 4101 to be connected with controlling links 4102a by wireless base station 4103, thus from controlling links 4102a obtain relevant internet 4104, belong to Intranet 4105, public switch telephone network (PSTN), ISDN and as the information of the type of the PHS4106 of available external network.This mobile comm unit 4101 is connected to controlling links 4102a based on the route and the requirement of this Information Selection optimization, and the external network of same selection communicates.When mobile comm unit 4101 moves and this communication zone when changing, mobile comm unit 4101 is notified new controlling links 4102b, and selects external network in a similar fashion.

Simultaneously, the figure of Figure 42 mobile communication system configuration of being among the JP-T-2003-514442 to be disclosed.

In Figure 42, allow mobile communication equipment 4202 to pass through selectively access network 4203 of one or more access network terminal equipment 4201.Based on the capacity of this access network terminal equipment 4202 and the comparative result decision access network terminal equipment 4202 of optimum capacity.With network 4203 communication period, whether mobile communication equipment 4202 detects continuously can utilize new access network terminal equipment 4201, and its capacity is compared with the access network terminal equipment 4202 that is connected at present.Under the new better situation of access network terminal equipment, be transformed into this new access network terminal equipment.

Yet in the mobile communication system that is disclosed in JP-T-2000-13823, this mobile comm unit 4101 will be from the attribute notice controlling links 4102 of this mobile comm unit.Otherwise, unless inquiry is arranged, can not regain information about external network, this makes it be difficult to promptly tackle the externally change of the availability situation of network.

Simultaneously, in the mobile communication system that is disclosed in JP-T-2003-514442, mobile comm unit 4202 is searched other available mobile routers 4201 periodically, so that adopt best mobile router 4201, even after connecting.Occurring under the suitable mobile router situation, connection resets to that mobile router 4201.Therefore, because this mobile comm unit 4202 is periodically searched best mobile router 4201, add very big burden for mobile comm unit 4202.In addition, there be the problem of the frequent exchange of control signal with the information that obtains this mobile router 4201.

Summary of the invention

The present invention is used to solve the aforementioned problems in the prior, an one purpose is to provide a kind of mobile communication equipment, mobile router and mobile communication system, even when the external interface of mobile router exists Link State to change, mobile communication equipment also can promptly switch this external interface, therefore continue communication, wherein the communication between this mobile communication equipment and router can not blocked.

The employed access media of Information Selection that mobile communication system of the present invention is handled according to mobile communication equipment, and notify mobile router with information, therefore limit this mobile router can with media be connected between mobile communication equipment and the external network, and allow to select therefrom.

Must to switch under the situation that inserts media in order continuing to communicate by letter even this makes, also can to select to be used for the access media of the best of this process information.

A kind of mobile communication equipment according to the present invention comprises: a type of service recording section is used to write down processed type of traffic; An interface recording section is used to write down the type with the external interface of this external network, and this external interface types receives when mobile router is delivered to this external network; An interface decision section is used to select at least one or a plurality of external interface that is fit to these types of service; And a translator unit, be used for notifying the first information of selected external interface to give the mobile router that is positioned at same segmentation.This makes mobile communication equipment to select external interface on one's own initiative according to the traffic performance that mobile communication equipment is handled.

Simultaneously, mobile communication equipment of the present invention further comprises a priority ordering judgement part, be used to judge the priority ordering of selected external interface, wherein this translator unit adds this priority ordering and produces second information to this first information, and notifies this second information.This makes this mobile communication equipment to specify priority ordering in selecting a plurality of external interfaces.

Simultaneously, in mobile communication equipment of the present invention, one group of external interface is to select from a plurality of external interfaces this mobile router.This allows this mobile communication equipment to select an external interface for the mobile router that a plurality of external interfaces are provided.

Simultaneously, in mobile communication equipment of the present invention, this interface recording section further writes down the link-state information of this external interface that is received, and this translator unit adds this link-state information to this second information, therefore produces a notice.Therefore, in having a plurality of mobile routers of current attachable external interface, the information that is used to optimize the interface that is connected with external network can be offered a mobile router.

Simultaneously, in mobile communication equipment of the present invention, this type of service recording section records is represented the importance of parameter of the characteristic of this type of service, and this interface decision section is judged external interface based on this importance.This can preferentially select to have the external interface of traffic performance importance.

Simultaneously, in mobile communication equipment of the present invention, the user had the function of one of importance of changing this type of service and parameter at least.This can reflect mobile communication equipment user's preferential selection when selecting external interface.

Simultaneously, in mobile communication equipment of the present invention, this type of service recording section has the function of record from the importance of the parameter of this external network download.This can be updated to parameter importance new, and it is reflected in interface is selected.

Simultaneously, in mobile communication equipment of the present invention, this interface decision section will be identical with this type of service parameter parameter as the parameter of representing this external interface characteristic, each external interface parameter further has the information of record priority ordering, and this external interface determines based on the priority ordering of this importance and parameter.This allows mobile communication equipment to select to optimize professional external interface.

Simultaneously, in mobile communication equipment of the present invention, this type of service recording section has the function that the user is changed at least one of the priority ordering of this type of service, importance and parameter.This can reflect mobile communication equipment user's preferential selection in selecting external interface.

Simultaneously, in mobile communication equipment of the present invention, this type of service recording section has any one at least function the priority ordering of this importance that record downloads from this external network and parameter.This can be updated to parameter importance up-to-date, and it is reflected in interface is selected.

Simultaneously, mobile communication equipment of the present invention also has one and collects the timer management part, be used to manage from this mobile router receive this external interface types during, wherein after this collection timer management partly receives the notice in the past scheduled time, this interface decision section is selected an external interface.This can select an external interface from all obtainable interfaces at that time.

Mobile router of the present invention comprises: an interface type recording section is used to write down external interface types information as the interface message that is connected with external network; A connecting interface recording section receives from the mobile communication equipment that receives said external interface type information and the record link information, and this link information is used for determining to carry out with the said external network external interface of relaying; Connect to judge part for one, judge that based on this link information whether relaying is from the communication of this mobile communication equipment; A router hop is used for this external interface types information of multicast, and produces the notice of judging selected mobile communication equipment to relaying.This allows this mobile router to provide by the selected external interface of mobile communication equipment.

Simultaneously, in mobile router of the present invention, this link information has a plurality of external interface types, and this connects judges part external interface of selection from this external interface types.This allows this mobile router that this external interface of being selected by this mobile communication equipment is provided.

Simultaneously, in mobile router of the present invention, this link information further adds priority ordering on each external interface types, and should connect the detection unit branch according to this priority ordering selection external interface.This feasible external interface that is fit to that can use in the external interface of selecting by this mobile communication equipment.

Simultaneously, mobile router of the present invention also comprises a timer management part, is used to manage by connecting the time that partly notice is delivered to this mobile communication equipment of judging, wherein this connection judged that part produced a notice after this past time, high more when priority ordering, this time is provided with short more.This makes can notify other mobile routers to have external interface than the higher priority ordering of correlation unit here.

Simultaneously, in mobile router of the present invention, but be under the highest situation of connection status and this priority ordering at this external interface, this connection judges that part carries out relaying.This allows the priority ordering the highest external interface of mobile router use in the external interface of being selected by this mobile communication equipment.

Simultaneously, mobile router of the present invention also comprises a peripheral link monitor portion, under the situation that the Link State of this external interface changes, notify this mobile communication equipment and other mobile routers with the change of Link State by this router hop.Therefore, when the Link State of external interface changes, can provide the chance of switching this external interface apace.

Simultaneously, in mobile router of the present invention, the update notifications connection state information that this connecting interface recording section changes based on the Link State that receives from other mobile routers, but and the information of the connection status after upgrading externally interface be under the highest situation of connection status and priority ordering, this connects judges that part allows transmission.Therefore, because the Link State of external interface changes, this external interface can switch between mobile router.

Simultaneously, mobile communication system comprises a mobile communication equipment and a mobile router.Therefore, no matter when this mobile communication equipment is wished and external network communication, can select the external interface of an optimization from this mobile router, thereby can communicate by letter.

As mentioned above, according to the present invention, even when the Link State of the external interface of mobile router changes, this mobile communication equipment also can switch this external interface apace, thereby continue communication, and avoid the communication blocking between mobile communication equipment and the mobile router.

Brief Description Of Drawings

Fig. 1 is the allocation plan of expression according to a kind of mobile communication system of the embodiment of the invention 1;

Fig. 2 is the block diagram of expression according to a kind of mobile communication equipment of the embodiment of the invention 1;

Fig. 3 is the illustration of expression according to the type of service recording section of the mobile communication equipment of the embodiment of the invention 1;

Fig. 4 is the illustration of expression according to the type of service recording section of the mobile communication equipment of the embodiment of the invention 1;

Fig. 5 is the illustration of expression according to the interface recording section of the mobile communication equipment of the embodiment of the invention 1;

Fig. 6 is the illustration of expression according to the matrix information in the interface decision section of the mobile communication equipment of the embodiment of the invention 1;

Fig. 7 is the configuration block diagram of expression according to the mobile router of the embodiment of the invention 1;

Fig. 8 is the illustration of expression according to the interface recording section of the mobile router of the embodiment of the invention 1;

Fig. 9 is the illustration of expression according to the connecting interface recording section of the mobile router of the embodiment of the invention 1;

Figure 10 is the precedence diagram of expression according to the operating sequence of the mobile communication equipment of the embodiment of the invention 1;

Figure 11 is the configuration block diagram of expression according to the mobile communication equipment of the embodiment of the invention 2;

Figure 12 is the configuration block diagram of expression according to the mobile router of the embodiment of the invention 2;

Figure 13 is the interface candidate list in the part is judged in expression according to the connecting interface of the mobile router of the embodiment of the invention 2 a illustration;

Figure 14 is according to the precedence diagram of the embodiment of the invention 2 up to the judgement of the external interface that is connected by mobile communication equipment;

Figure 15 is the interface candidate list in the part is judged in expression according to the connecting interface of the mobile router of the embodiment of the invention 3 a illustration;

Figure 16 is the allocation plan of expression according to the mobile communication system of the embodiment of the invention 4;

Figure 17 is the configuration block diagram of expression according to the mobile communication equipment of the embodiment of the invention 4;

Figure 18 is the illustration of expression according to the interface recording section of the mobile communication equipment of the embodiment of the invention 4;

Figure 19 is the block diagram of expression according to the mobile router of the embodiment of the invention 4;

Figure 20 is the illustration of expression according to the connection permission table in the connection control section of the mobile router of the embodiment of the invention 4;

Figure 21 is by mobile communication equipment connected up to the precedence diagram of judging external interface according to the embodiment of the invention 4;

Figure 22 A is the operation flow sheet that expression is switched by the external interface that mobile communication equipment connected according to the embodiment of the invention 4;

Figure 22 B is the external interface that is connected by mobile communication equipment is returned in expression according to the embodiment of the invention 4 a operation flow sheet;

Figure 23 is the operation flow sheet that expression is switched by the external interface that mobile communication equipment connected according to the embodiment of the invention 4;

Figure 24 is that expression is according to the allocation plan of the embodiment of the invention 1 by the interface message notice of mobile communication equipment generation;

Figure 25 A is that expression is according to the allocation plan of the embodiment of the invention 1 by the interface specified notification of mobile communication equipment generation;

Figure 25 B is that expression is according to the allocation plan of the embodiment of the invention 2 by the interface candidate of mobile communication equipment generation;

Figure 25 C is that expression is according to the allocation plan of the embodiment of the invention 3 by the interface candidate of mobile communication equipment generation;

Figure 26 A is that expression produces the allocation plan that connection request is confirmed according to the embodiment of the invention 4 by mobile router;

Figure 26 B is the allocation plan that expression is confirmed by connection request that mobile router produces according to the embodiment of the invention 5;

Figure 27 is the operational flowchart of expression according to the mobile communication equipment of the embodiment of the invention 1;

Figure 28 is the operational flowchart of expression according to the mobile router of the embodiment of the invention 1;

Figure 29 is the operational flowchart of expression according to the mobile communication equipment of the embodiment of the invention 2;

Figure 30 is the operational flowchart of expression according to the mobile router of the embodiment of the invention 2;

Figure 31 is the operational flowchart of expression according to the mobile communication equipment of the embodiment of the invention 4;

Figure 32 is the operational flowchart of expression according to the mobile router of the embodiment of the invention 4;

Figure 33 is the recovery operation flow chart of expression according to the mobile communication equipment of the embodiment of the invention 4;

Figure 34 is the recovery operation flow chart of expression according to the mobile router of the embodiment of the invention 4;

Figure 35 is that expression is according to the reception operational flowchart of the embodiment of the invention 4 from the external network of mobile router;

Figure 36 is the configuration block diagram of expression according to the mobile router of the embodiment of the invention 5;

Figure 37 is the operational flowchart of expression according to the mobile router of the embodiment of the invention 5;

Figure 38 is the operational flowchart of expression according to the mobile communication equipment of the embodiment of the invention 5;

Figure 39 is the operational flowchart of expression according to the mobile router of the embodiment of the invention 5;

Figure 40 is the figure of expression according to the link-state list in the peripheral link monitor portion of the mobile router of the embodiment of the invention 4;

Figure 41 is the allocation plan of expression a kind of mobile communication system of the prior art;

Figure 42 is the allocation plan of expression a kind of mobile communication system of the prior art.

Implement best mode of the present invention

Below with reference to the description of drawings embodiments of the invention.Should be mentioned that in passing identical element is represented with identical label.

(embodiment 1)

Fig. 1 is the mobile communication system in the present embodiment and the arrangement figure of external network.

In Fig. 1, mobile communication equipment 101 is terminal units of process information.Mobile router 102 with common wireless interface allows to communicate with this mobile communication equipment 101.Simultaneously, this mobile router 102 has a plurality of interfaces that are connected to linkage unit 103, this linkage unit is provided in the external network 104, has from mobile communication equipment 101 relayed information to external network 104 or the function from external network 104 relayed information to mobile communication equipment 101.This mobile comm unit 101 and mobile router 102 are formed a mobile communication system.

For example, linkage unit 103 can be the access point of IEEE802.11, the access point of HIPERLAN, the access point (base station) of PDC network, the access point (base station) of third generation cellular phone network (CDMA2000, W-CDMA) or the access point of the 4th third-generation mobile communication system.

Fig. 2 is the configuration block diagram of expression mobile communication equipment 101 of the present invention.This arranges with common wireless interface 201, common data link control part 202, network controller 203, high-rise processing section 204, type of service recording section 205, interface recording section 206 and interface decision section 207.

This common wireless interface 201 is arranged with antenna, RF circuit and baseband processing circuitry.Its is carried out the signal that modulation receives from common data link control part 202 and changes this signal for wireless signal by antenna transmission and the wireless signal demodulation that will receive from antenna and transmit the processing of digital signal to common data link control part 202.

This common data link control part 202 is used by the form of tentation data link layer definition and is carried out signal framing that obtains from network controller 203 and the processing that sends it to common wireless interface 201; Execution is isolated data link layer letter head and letter tail and is sent it to the processing of this network controller 203 from the digital signal that this common wireless interface 201 receives; And carry out according to the processing that inserts the wireless medium right by the access scheme acquisition of this data link layer definition.

This common wireless interface 201 and common data link control part 202 are public in this mobile comm unit, and for example, they are according to IEEE802.11a, IEEE802.11b, IEEE802.11e, bluetooth or UWB regulation.

This network controller 203 is equipped with internet protocol (IP), according to this IP and this high level processing section 204 and common data control section 202 swap datas.The processing of the message of this interface message that these network controller 203 these mobile routers 102 of execution generation request have; Carry out the processing that obtains this interface message and send it to this interface recording section 206; And carry out the processing that produces interface specified notification message, this message stores is by the interface type information of these interface decision section 207 appointments.This interface specified notification message is used for notifying the interface that uses at this mobile router.This network controller 203, common wireless interface 201 and common data link control part 202 are formed transmitter section.

These IP layers and more high-rise layer processing are carried out in this high level processing section 204, with when needed with these network controller 203 swap datas.

This type of service recording section 205 is memories, is used to write down the type of service that this mobile communication equipment 101 is handled.Fig. 3 is the type of service table that expression is recorded in the traffic performance importance of type of service in this type of service recording section 205 and correlation unit.For example, when this mobile communication equipment 101 is carried out voice call business, real time kinematics Image Communication and function that internet is connected, represent identifier record that real-time speech communicating, real time kinematics Image Communication communicate by letter with internet in service fields 302, as shown in Figure 3.When such professional of needs, in relevant parameter field 301, mark is set.These attributes can and change by user's setting.When the user does not use telephony feature to be provided with, as shown in Figure 4, not permission of telephony feature information is transmitted to this type of service recording section 205 in this high level processing section 204, and therefore the effective mark 401,402 of communicating by letter with internet about the real time kinematics Image Communication only is set in parameter field 301.

This interface recording section 206 is memories, is used to write down the type information of the interface that this mobile router 102 had.By the way, in this network controller 203, from the interface message notification message that this mobile router 102 receives, extract the type information of external interface, be sent to this interface recording section 206 then.Fig. 5 represents the example of interface type information.Represent that this mobile router 102 has the IPv6 global address 501 of 3ffe:501::100:204:blff:fe98:3ed and has interface type 502-504 based on IEEE802.11a, W-CDMA and PDC.

This interface decision section 207 is carried out and is handled, and the information from be stored in this type of service recording section 205 and interface recording section 206 determines this mobile router 102 selected interfaces.These interface decision section 207 storages are used to select the matrix information of at least one interface, therefore can be according to this information determining interface.As shown in Figure 6, the priority ordering of this matrix information and each type of service together is provided with, as the point on each feature.Use this type of service table and matrix information, this interface decision section 207 is judged the type of service of using.

For example, as shown in Figure 4, the business of being handled by this mobile communication equipment 101 only is that real-time mobile Image Communication is communicated by letter with internet.For realtime graphic communication, all parameters except voice, zone and price are most important (AA among Fig. 4), and zone and price parameter are important (A among Fig. 4).For internet communication, speed and price parameter are most important, and region parameter is important.

In this case, because the interface that this mobile router 102 has is IEEE802.11a, W-CDMA and PDC from Fig. 5, therefore each interface parameters of the matrix of representing in Fig. 6, is calculated each interface by weights of importance.

For example, by most important (AA among Fig. 4) 0.5 times, important (A among Fig. 4) 0.3 times, unessential (B among Fig. 4) 0 times of calculating, the summation of relevant parameter is " 7.1 " at IEEE802.11a in real-time mobile Image Communication, is " 7.2 " and be " 5.9 " at PDC at W-CDMA.Consequently, W-CDMA is judged as the interface of use, and notifies this network controller 203.

Similarly, in internet communication,, be " 2.9 " and be " 3.5 " at PDC at W-CDMA because the summation of relevant parameter is " 5.6 " at IEEE802.11a, therefore, IEEE802.11a is judged as the interface of use, and notifies this network controller 203.

Fig. 7 is the configuration block diagram of expression mobile router 102 of the present invention.This constitutes with common wireless interface 701, common data link control part 702, network controller 703, high-rise processing section 704, interface type recording section 705, connecting interface recording section 706, wave point [1......n] 707 and data link control section [1......n] 708.

This common wireless interface 701 is the functional blocks of communicating by letter with this mobile communication equipment 101 with common data link control part 702.This has the common wireless interface 201 that is similar to mobile communication equipment 101 and the function of data link control section 202.

This wave point (1)-(n) 707 is to be used to insert number n of external network 104, wave point with different characteristics, be based on IEEE802.11a as wave point (1) 701, and wave point (2) 702 is based on W-CDMA.This wave point (1)-(n) 707 constitutes with antenna, RF circuit and baseband processing circuitry.Carry out signal that modulation receives from this data link control section (1)-(n) 708 and it is transformed to processing at the wireless signal of antenna transmission, and carry out signal that demodulation receives from this antenna and the processing that digital signal is sent to this data link control section 708.

This data link control section (1)-(n) 708 is data link control sections of corresponding wave point (1)-(n) 707, has different characteristics similarly.This data link control section (1)-(n) 708 is according to carried out the signal framing that obtains from this network controller 703 by the form of tentation data link layer definition.This is sent to the processing of this wave point 707, mask data link layer stem and afterbody and it is sent to the processing of this network controller 703 and the processing that obtains to insert the right of wireless medium according to the access scheme of data link layer definition from the digital signal that this wave point 707 receives.

This network controller 703 is analyzed from the processing of the interface specified notification message of this mobile communication equipment 101 receptions, and the interface identifier of the identifier of record mobile communication equipment 101 and use is to this connecting interface recording section 706.In addition, it produces the interface message notification message under the correlation unit administration from the information that is stored in this interface type recording section 705 processing, this message is sent to this mobile comm unit 101.This interface message notification message and together store in a pair of interface type information and the interface identifier of connection status.This network controller 703 is equipped with internet protocols (IP), to carry out this high level processing section 704 and this common data link control part 702 or and the processing of the swap data of data link control section (1)-(n) between 708.When transmitting message to external network, be provided with so that transmit these message by the wave point 707 of appointment in this connecting interface recording section 706 from this mobile communication equipment 101.This network controller 703, common wireless interface 701 and common data link control part 702 are formed router transmitter part.

This high level processing section 704 carries out these IP layers and high-rise layer is handled, so as required with these controller 703 swap datas.

This interface type recording section 705 is memories, stores the connection permission table of the interface type information that has as this mobile router 101.As shown in Figure 8, this table is made up of interface type field 801, interface identifier field 802 and Link State 803.Here, this interface identifier 802 is as the IPv6 global address, so as separately identifier memory interface type 801 (IEEE802.11a, b, c, W-CDMA, PDC).

This connecting interface recording section 706 is used for record interface type and mobile communication equipment identifier, and it is included in from the interface specified notification message that this mobile communication equipment 101 receives.Fig. 9 represents the example of connecting interface recording section 706.Its expression is for by communicating by letter and use W-CDMA interface 902 between the mobile communication equipment 101 of mobile communication equipment identifier 901 appointments and the external network 104.

This peripheral link monitor portion 709 has the function of the connection status of inspection and external network 104.Transmit the power level information that receives, error rate and the reception of the beacon signal of the signal that receives at this wave point 707 exist/does not exist to peripheral link monitor portion 709 from this data link control section 708.This peripheral link monitor portion 709 can receive specific signal from this data link control section 708, as beacon signal.When error rate be in allowed band and incoming level enough high, its judge with being connected of external network 104 be possible.Connect in the permission table at this, Link State 803 is set to " connection ".When the peripheral link state changes, just, become when connecting when Link State becomes not connect or never connect from connection, the state that this peripheral link monitor portion 709 transmits after peripheral links change and change is given this network controller 703, and therefore indication produces the interface message notification message.This process is all effective if having time in institute.

The mobile communication equipment 101 that explanation is now as above disposed and the operation of mobile router 102.

Figure 10 represents the order up to the interface of judging this mobile router 102, and this interface is used for being connected of mobile communication equipment 101 and external network 104.Figure 27 is the operational flowchart of expression mobile communication equipment 101, and Figure 28 is the operational flowchart of expression mobile router 102.

At first, select message according to mobile communication equipment 101 by the router that this common wireless interface 701 receives, the new inlet (step S2801) of mobile communication equipment 101 is checked in the high-rise processing section 704 of mobile router 102.

When the new inlet of mobile communication equipment 101 is detected in high-rise processing section 704, network controller 703 receives its notice and the generation of the information from interface type recording section 705 interface message notification message 1001 as shown in figure 24, sends to the mobile communication equipment 101 (step S2802) that newly enters by common wireless interface 701.Here, in this interface message notification message, the identification code of itself is arranged in the mobile router identifier 2401, and itself has, be arranged in the external interface types 2402 to the interface identifier sign indicating number of external network 104.

Simultaneously, the network controller 203 of mobile communication equipment 101 is checked the reception (step S2701) of interface message notification message.When receiving the interface message notification message, the mobile communication equipment identifier 901 of interface type 902 and wherein storage is stored in interface recording section 206 (step S2702).Under the situation of not receiving the interface message notification message, this process moves to step S2703.

Then, the communication request (step S2703) that whether produces external network 104 is checked in the high-rise processing section 204 of mobile communication equipment 101.Under situation about producing, the importance parameter corresponding to communication service is searched in high-rise processing section 204 in type of service recording section 205, and this information from be stored in interface recording section 206 is judged the interface (step S2704) that uses with the matrix information that is stored in the interface decision section 207.

Behind the interface that judge to use, the network controller 203 of mobile communication equipment 101 produces the interface specified notification message 1002 shown in Figure 25 A and by common wireless interface 201 it is sent to mobile router 102 (step S2705).Here, in interface specified notification message, the identification code of itself is arranged in the mobile communication equipment identifier 2501, and the external interface types of using is arranged in the external interface types 2502.

Then, network controller 703 inspections of mobile router 102 are from the reception (step S2803) of the interface specified notification message of mobile communication equipment 101.When receiving interface specified notification message 1002, network controller 703 extracts the identifier 901 of mobile communication equipment 101 and the interface type 902 that uses from interface specified notification message, and it is recorded connecting interface recording section 706 (step S2804).

From that time, use in the communicating by letter between mobile communication equipment 101 and external network 104 this appointment interface (step S2805, S2806).

Then, illustrate that the operation under the unusual situation takes place the connection line to external network that is provided by mobile router 102 in communication beginning back.

The peripheral link monitor portion 709 of mobile router 102 is checked unusual (the step S2806) of the interface that is connected.When detecting when unusual, peripheral link monitor portion 709 is updated in the information in the interface type recording section 705, and indication network controller 703 transmission interface information notification messages 1003.Step turns back to S2802.When not detecting when unusual, whether the communication of judgement finishes, to continue abnormality detection up to sign off.

Simultaneously, after the communication beginning, mobile communication equipment 101 turns back to step S2701.When receiving interface message when notifying 1003, carry out process from step S2702 to step S2706, with transmission interface specified notification 1004 and be transformed into new interface, thereby continue communication.

As mentioned above, in the present embodiment, mobile communication equipment not with the device of external network direct communication, by having under the situation of the mobile router of the interface of various external networks and external network communication, the characteristic of the business of handling according to this mobile communication equipment is chosen the interface of this external network and is notified this mobile router, thereby allows to specify the optimized interface of this business.Simultaneously, the interface that no thoroughfare does not satisfy this traffic performance communicates, and this can prevent to worry because the conversion third party of this interface obtains relevant information, the interference that the deterioration of concern of data quality and worrying is communicated by letter with other mobile communication equipments.Simultaneously, when the generation of communication period external network was unusual, this mobile router notified new interface message just to give this mobile communication equipment automatically.Do not need this mobile communication equipment to inquire the interface message of mobile router continually, can prevent the backlog between mobile communication equipment and mobile router.

(embodiment 2)

In embodiment 2, mobile communication equipment 101, mobile router 102 and mobile communication system 105 have the same structure with embodiment shown in Figure 11.

Figure 11 is the configuration block diagram of mobile communication equipment 101 of the present invention.

In Figure 11, candidate interface is selected part 111 to handle and is selected candidate interface, and this mobile router 102 is selected from the information that is stored in type of service recording section 205 and interface recording section 206 when present mobile communication equipment 101 is communicated by letter with external network 104.This candidate interface is selected part 111 to have interface decision section and is added that priority ordering judges the function of part, the set of the external interface that the priority ordering that is used for judging interface group is externally judged as this interface decision section.This candidate interface is selected part 111 storages to be used to select the matrix information of at least one interface and is judged candidate interface according to this information.

Difference is, provide this candidate interface to select part 111 to replace interface decision section 207, and other component units is identical.

Suppose to have IEEE802.11a, W-CDMA and the PDC interface similar to embodiment 1, mobile communication equipment 101 of the present invention is communicated by letter with external network 104 by this mobile router, the summation of the relevant parameter in the real-time mobile Image Communication is " 7.1 " at IEEE802.11a, be " 7.2 " at W-CDMA, and be " 5.9 " at PDC.Here the highest level of supposing real time communication have as shown in Figure 6 be 5 priority ordering and the complete importance shown in Fig. 3 entirely for " AA ", its total value is " 10.5 ".At this moment, select threshold value to be set under 60% the situation at interface, this threshold value is " 6.3 ".This candidate interface selects part 111 to judge that W-CDMA and IEEE802.11a are sent to network controller 203 as candidate interface and with information.

Similarly, in Internet traffic, the summation of relevant parameter is " 5.6 " at IEEE802.11a, be " 2.9 " at W-CDMA, and is " 3.5 " at PDC, and wherein this threshold value is " 3.9 ".Therefore, this candidate interface selects part 111 to judge that IEEE802.11a is sent to network controller 203 as candidate interface and with information.

Network controller 203 produces the candidate interface notification message of mentioning among the candidate interface message replacement embodiment 1 of many selectable interface type information of storage as shown in Figure 25 B.In Figure 25 B, the identification code of itself is set to mobile communication equipment identifier 2501, and selects to be set to candidate's external interface 2503 as candidate's type.

Figure 12 is the configuration block diagram of the mobile router 102 of expression present embodiment.

Connecting interface judges that part 121 executive loggings are included in the interface type from this candidate interface message that mobile communication equipment 101 receives and the processing of mobile communication equipment identifier, and carries out the processing of judging the interface that uses in the communication from this record interface.Figure 13 represents to be stored in the example that this connecting interface is judged the candidate interface table in the part 121.This figure demonstration is used any W-CDMA, IEEE802.11a and interface type 1302 for the communication between mobile communication equipment 101 and this external network, and mobile communication equipment 101 is specified by this mobile communication equipment identifier 1301.Be to provide this interface decision section 121 to replace interface recording sections 706 with the difference of the mobile router of embodiment 1, and other component units is identical.By the way,, interface decision section 121 has connecting interface recording section 706 and is connected the function of judging part, is used for judging the interface that uses the communication from the interface that wherein writes down.

When transferring data to external network 104, judge that from being recorded in this connecting interface the data link control section 708 of each interface the part 121 obtains beacon signal or received power level information, with the interface of selecting to be connected with external network 104.When being connected total interface as the candidate all can utilize the time, for the purpose of interface identifier select be among the appended interface ID up near the front or minimum interface, just, only select an interface arbitrarily.

Figure 14 represents the order up to the interface of judging mobile router 102, and this mobile router 102 is used for being connected of mobile communication equipment 101 and external network 104.Figure 29 is the operational flowchart of expression mobile communication equipment 101, and Figure 30 is the operational flowchart of expression mobile router 102.

In the operation of the step S2701-S2703 of mobile communication equipment 101 and identical with the operation among the embodiment 1 in the operation of the step S2801 of mobile router 102 and S2802.

Then, at mobile communication equipment 101, when producing the communication request of external network 104, the importance parameter corresponding to the business of communication in type of service recording section 205 is searched in high-rise processing section 204, and the information from be stored in interface recording section 206 and be stored in candidate interface and select to judge the candidate interface of using (step S2904) in the matrix information in the part 111.

After determining the interface that uses, the network controller 203 of mobile communication equipment 101 produces candidate interface message 1401 and sends it to mobile router by common wireless interface 201, the identifier 1301 of these candidate interface message 1401 storages self and use interface type 1302 (step S2905) as one or more of candidate.

This mobile router 102 is checked from the reception (step S3003) of the candidate interface notification message 1301 of mobile communication equipment 101.When receiving candidate interface notification message 1401, what therefrom extract is the identifier 1301 of mobile communication equipment 101 and the interface type 1302 that uses as the candidate, and it is recorded in the connecting interface judgement part 121 (step S3004).On the interface type 1302 and the basis from the interface message of data link control section 708 of record, connecting interface judges that part 121 judges the interface (step S3005) of use from candidate interface.

Since then, use the interface (step S2906, step S3006) of this appointment in the communication between mobile communication equipment 101 and external network 104.

Then, the peripheral link monitor portion 709 of mobile router 102 is checked from unusual (the step S3007) of this interface of data link control section 708 connections.When detecting when unusual, peripheral link monitor portion 709 is with its informing network controller 703.Network controller 703 is updated in the information in the interface type recording section 705 and notifies connecting interface part 121.Processing turns back to step S3005.At step S3005, the connecting interface of this notice judgement part 121 is selected an interface from the candidate interface table, and this interface is not to detect the unusual interface of link.When not having candidate interface, handle turning back to step S2802, arrive mobile communication equipment 101 (step S3009) to notify information about new interface.Do not detecting under the unusual situation, whether checking sign off (step S3008).Abnormality detection proceeds to sign off.

Simultaneously, after the communication beginning, mobile communication equipment 101 turns back to step S2701.When mobile router 102 receiving interface information notify 1001, carry out processing from step S2702 to step S2906, to switch to new interface, therefore continue communication.Yet as long as allow mobile router 102 to select from this candidate interface table, communication need not advise of same with regard to continuation.

As mentioned above, this embodiment obtains to be similar to the effect of embodiment 1.In addition, even externally take place in the network unusual the time, this mobile router switches to other interfaces in the candidate interface, therefore continues communication.Like this, allow this mobile communication equipment to continue to communicate by letter and need not any attention.Simultaneously, when not having candidate interface to utilize, be similar to embodiment 1, new interface message is notified mobile communication equipment automatically.Therefore, mobile comm unit does not need to ask continually about the interface message to mobile router, makes it can prevent backlog between mobile comm unit and mobile router.

(embodiment 3)

In embodiment 3, mobile communication equipment 101, mobile router 102 and mobile communication system 105 have the configuration identical with embodiment 2.The candidate interface of mobile communication equipment 101 in this embodiment selects part 111 to select first, second and the 3rd candidate interface of balloon score grade based on the mark that is calculated among the embodiment 2.Network controller 203 has priority ordering shown in Figure 25 C with this candidate interface setting, and it is stored in the candidate interface notification message, thereby sends it to mobile router 102 by common wireless interface 201.Here W-CDMA is first candidate interface, and IEEE802.11a is second candidate interface.In Figure 25 C, the identification code of itself is set to mobile communication equipment identifier 2501, select to be set to outside candidate interface 2504 as candidate's external interface types, and the selecting sequence of this external interface is set to priority ordering 2505.

The network controller 703 record mobile communication equipment identifiers 1501, candidate interface Class1 502 and the priority ordering 1503 that receive the mobile router 102 of this candidate interface notification message 1001 are judged in the candidate interface table as shown in Figure 15 of part 121 to connecting interface.

Simultaneously, step S3005 in Figure 30 handles, whether connecting interface is judged that part 121 receives from the beacon signal of this interface and is shown in the higher level shown in this candidate interface table with received power information decision table and can be connected, thereby use the attachable interface of judgement.

Under 709 judgements of peripheral link monitor portion and the unusual situation in the external network communication of mobile router 102, connecting interface judgement part 121 selects next grade to causing unusual interface from the priority ordering 1503 of this candidate interface table.When not having candidate interface, handle and turn back to step S2801, notify new interface message to mobile communication equipment 101.After this processing is identical with embodiment 2.

As mentioned above, in the present embodiment, allow mobile communication equipment when selecting the interface that is used to connect, to specify priority ordering, therefore except the effect that realizes embodiment 2, be implemented in initiatively following interface selection of mobile communication equipment.Even take place under the unusual situation at this interface, mobile router is selected with the optimal conditions order, makes to continue communication.

(embodiment 4)

Figure 16 is that expression comprises that the mobile communication system 165 of mobile communication equipment 161 and mobile router 162 is the concept maps that are connected with network.The mobile router 162 of present embodiment and the difference of the mobile router 102 among the embodiment 1 are that it only has an interface, are used for being connected with the connection device 163 that is provided at external network 164.In the mobile communication system of present embodiment, mobile router 162-1-162-3 has distinct interface respectively.Linkage unit 163-1-163-3 is identical with embodiment 1.

Figure 17 is the configuration block diagram of expression mobile communication equipment 161 of the present invention.

Mobile communication equipment 161 has interface recording section 206, record information shown in Figure 180 in its memory.

In Figure 18, the mobile router 162-1 that has the communication device identifier 1801 of 3ffe:501::100:204:blff:fe98:3ed in the IPv6 global address has the interface type 1802 of IEEE802.11a.Mobile router 162-2 with communication unit identifier 1801 of 3ffe:501:221:10:312:26ff:fe14:2805 has the interface type 1802 of W-CDMA.Mobile router 162-3 with communication unit identifier 1801 of 3ffe:501:221:10:312:26ff:fe14:2805 has the interface type 1802 of PDC.Each mobile router is represented with connection status.

By the way, priority ordering field 1804 selects the selection of part 171 to handle according to mobile router to be provided.Providing of these fields makes it can grasp the external interface types 1802 of each mobile router 162 that is present in the mobile communication system 165.

The candidate interface that mobile router selects the information and executing of part 171 from be stored in type of service recording section 205 and interface recording section 206 to judge that communication is used between this mobile communication equipment 161 and external network 164 is handled, thereby selects to have the mobile router 162 of this interface.By the way, storage is used to select the mobile router 171 of matrix information of at least one interface according to this information decision interface.By the way, how to determine that candidate interface is identical with embodiment 2.

Carry out the processing of exchanges data between network controller 203 execution and high-rise processing section 204 and the common data link control part 202, carry out to produce the processing of the message of the interface message that request mobile router 162 has as required, and obtain this interface message that mobile router 162 has and the processing that sends it to interface recording section 206, be similar to embodiment 2.And network controller 203 produces candidate interface message, the selectable interface type 1802 of storage, the identifier 1801 with mobile router of this interface, its priority ordering 1804 and Link State 1803 that this candidate interface message is paired.

Select timer management part 172 to be used for management and collect timer and confirm timer, this collection timer is used to regulate the cycle of collecting interface message from mobile router 162, and this affirmation timer is used to start candidate interface and selects the transmission again of information to handle.

Figure 19 is the configuration block diagram of expression mobile router 162 of the present invention.Data link control section 708 and wave point 707 have the function that is different between the mobile router.For example, in Figure 16, mobile router 162-1 has the function of IEEE802.11, and mobile router 162-2 has the function of W-CDMA, and mobile router 162-3 has the function of PDC.

Connect the interface specified notification message that control section 191 receives from mobile communication equipment 161.In the information from be included in this message, its produces and type 2003, identifier 2002, the Link State 2004 of record mobile communication equipment identifier 2001, the interface of representing with this identifier selected by mobile communication equipment with mobile router of this interface and be expressed as priority ordering be connected permission table 2005.

Peripheral link monitor portion 192 has the function of the connection status of inspection and external network 164.The existence that the beacon signal of received power level information, error rate and the signal that receives at wave point 707 receives/do not exist from data link control section 708 to send to peripheral link monitor portion 192.Peripheral link monitor portion 192 has link-state list as shown in figure 40, storage external interface types 4001 and Link State 4002 in this table.Peripheral link monitor portion 192 can receive the special signal from the information of data link control section 708, as beacon signal.When error rate is in allowed limits and incoming level when enough high, judgement can be connected with external network 164.In link-state list, Link State 4002 is set to " connection ".When the peripheral link state changes, just, link-state list becomes when connecting when becoming not connect or never connect from connection, the state that peripheral link monitor portion 192 transmits after peripheral link changes and changes is given network controller 703, and therefore indication produces the interface message notification message.This is handled at any time and carries out.

Network controller 703 is analyzed the interface specified notification message that receives from mobile communication equipment 161, and the line item information of going forward side by side is to the processing that connects control section 191.Simultaneously, by peripheral link monitor portion 192 indication, produce the interface message notification message and under correlation unit control, send it to the processing of mobile communication equipment 161 by storing the interface type 2003, mobile router identifier 2002 and the Link State 2004 that itself have.When connecting control section 191 and receive the connection request acknowledge message of the request of generation, search the Link State of peripheral link monitor portion 192.At Link State 2004 is under the situation of connection status, comprises that by generation the connection request acknowledge message of itself identifier 2002 and interface type 2003 is carried out transmission process.In addition, execution is with the exchanges data of high-rise processing section 704, common data link control part 702 and data link control section 708.

Communication request receive to judge part 194 determines whether receive communication request or data at this interface, and this interface is by related mobile communication equipment selected interface when receiving from external network 164 to mobile communication equipment 161 communication request or data.Under the situation of the interface of being selected by mobile communication equipment 161, indication network controller 703 transmits this communication request or data arrive this mobile communication equipment.

Other component units are identical with embodiment 2.

Figure 21 represents the order up to the interface of determining mobile router 162, and this interface is used for being connected of mobile communication equipment 161 and external network 164.Figure 31 is the operational flowchart of expression mobile communication equipment 161, is illustrated in to connect and become by after mobile router 162 controls, with external network communication processing from start to end.Figure 32 is the operational flowchart of expression mobile router 162, be illustrated in detect mobile communication equipment 161 after, from the processing from start to end of mobile communication equipment 161 trunk informations.

At first, if when detecting the new inlet of mobile communication equipment 161 (step S3201), mobile router 162 is prepared interface message notification message 2101-1-2101-n, and it is sent to mobile communication equipment 161 (step S3202).The a plurality of mobile routers 162 of this interface message notification message from mobile communication system 165 send.

Simultaneously, when the mobile communication equipment 161 that newly enters was connected with mobile communication equipment 165, it was collected timer management part 172 and the collection timer is set and waits for interface message communication information a period of time (step S3101).

When receiving the interface message notification message, the Link State 2004 of the network controller 203 memory interface types 2003 of mobile communication equipment 161, mobile router identifier 2002 and wherein storage is to interface recording section 206 (step S3102).Wait is from the interface message notification message of other mobile routers 162, gone over (step S3103) up to acquisition time.

After this, when the acquisition time past tense, the high-rise processing section 204 of mobile communication equipment 161 is checked through the generation (step S3104) of the communication request of external network.Under situation about producing, the importance parameter corresponding to communication service is searched in high-rise processing section 204 in type of service recording section 205, and from information that is stored in interface recording section 206 and the candidate interface (step S3105) that is stored in the definite use of matrix information the mobile router selection part 171.

After the employed candidate interface of decision, the network controller 203 of mobile communication equipment 161 produces candidate interface notification message 2102, identifier 2001, employed candidate interface type 2003, its priority ordering 2005 and the Link State 2004 (step S3106) of these candidate interface notification message 2102 storages self, and send it to mobile router 162 (step S3107).At this moment, this confirms the timer setting, is used for receiving from mobile router 162 the permission time of connection request acknowledge message.

Simultaneously, network controller 703 inspections of mobile router 162 are from the reception (step S3203) of the candidate interface notification message of mobile communication equipment 161.When receiving this message, network controller 703 extracts the identifier 2001 of mobile communication equipment 161, employed candidate interface type 2003, priority ordering 2005 and Link State 2004 from this candidate interface notification message 2102, and writes down these to the connection permission table (step S3204) that connects control section 191.Whether whether the identifier that the search of the connection control section 191 of mobile router 162 connects control permission tables and determines mobile router 162 be in connection status, whether have the highest ranking and this peripheral link that conform to itself identifier is in connection status (step S3205).When satisfying these conditions, connect control section 191 with the connection request acknowledge message (step S3206) that itself also produces and send shown in Figure 26 A as selected interface.When not satisfying condition, handle turning back to step S3201.At will say, the identifier of itself is set in the mobile router identifier 2601 of connection request acknowledge message.The external interface types of use externally is set in the interface type 2602.

The network controller 203 of mobile communication equipment 161 is checked the reception (step S3108) of connection request acknowledge message.If do not receive, check the past (step S3109) of acknowledging time.If acknowledging time not in the past, handles turning back to step S3108.If acknowledging time has been gone over, check whether whether the transmission time number of times of candidate interface notification message 2102 reaches preset count (step S3110).Do not reach at the number of transmissions under the situation of this counting, the counter of the number of transmissions increases " 1 ", handles turning back to step S3107 then.Reach at the number of transmissions under the situation of this counting, produce the interface message request message and be multicasted to mobile router 162 (step S3111).

Whether receive at step S3108 under the situation of connection request affirmation 2103, check the identifier of the mobile router 162 that receives, be candidate's mobile router (step S3112) of selecting so that check it.When it is not one of candidate's mobile router, handle moving to step S3111.When it is candidate's mobile router, be established to the connection of this mobile router, therefore communicate (step S3113, S3207).

Below explanation switches to the operation of mobile router (2) 162 up to the interface of mobile router 162 from mobile router (1) 162, and this interface is used to connect mobile communication equipment 161 to external network 164.Figure 22 A represents the order of this operation.

The peripheral link monitor portion 192 of the mobile router (1) 162 that be connected with external network 164 this moment is checked the variation (step S3208) of peripheral link state.If detect unusually, notify this network controller 703.Network controller 703 lastest imformations are not for to be connected with the interface of external network, by this business is provided self.Then, processing turns back to step S3202.Therefore, network controller 703 is prepared interface message notification messages 2201, and notice is to be in the situation of connection status not and to send it to mobile communication equipment 161 (step S3202).

The network controller 203 of mobile communication equipment 161 is checked the reception (step S3114) of interface message notification message 2201.If do not receive, rechecking is to sign off (step S3115).If receive, wherein Cun Chu interface type 2003, mobile router identifier 2002 and Link State 2004 are stored in interface recording section 206 (step S3116).After this, handle and turn back to step S3105, in type of service recording section 205, search importance parameter corresponding to communication service.From information that is stored in interface recording section 206 and the candidate interface (step S3105) that is stored in the definite use of matrix information the mobile router selection part 171.At this moment, mobile communication equipment 161 decision mobile routers (2) are the highest ranking of the candidate interface of use.

When the candidate interface notification message 2202 that receives from mobile communication equipment 161 (step S3203), mobile router (2) 162 extracts identifier 2001, interface type 2003, priority ordering 2005 and the Link State 2004 of mobile communication equipment 161 from candidate interface notification message 2202, and it is recorded the connection permission table (step S3204) that connects control section 191.

At this moment, the identifier 2001 of the highest priority ordering of mobile router (2) 162 decision mobile routers 162 is in connection status, and multicast connection request acknowledge message 2203 (step S3206).

When receiving connection request acknowledge message 2203 (step S3108), mobile communication equipment 161 is checked transmission sources (step S3112) and is authorized it, because transmission sources is mobile router (2).Then, the executive communication (step S3113) that connects.

Below explanation is returned the operation of this connection from mobile communication equipment 161 under the situation of the connecting interface recovery of mobile router 162.

Figure 22 B represents the order of this operation.Figure 33 is the operational flowchart of the order of expression mobile communication equipment 161, and Figure 34 represents the flow chart of mobile router 162.

The peripheral link monitor portion 192 of mobile router (1) 162 is checked the change (step S3401) of peripheral link state.If detect recovery, informing network controller 703.Network controller 703 lastest imformations are the connection status to external network interface.Network controller 703 checks that from the candidate interface notification message that each mobile communication equipment 161 receives whether the identifier of self has been selected (step S3402) in being stored in the connection permission table that connects in the control section 191.If do not find the identifier of itself in this candidate, then processing finishes.If in this candidate, find the identifier of itself, then with the current relatively priority ordering (step S3403) of mobile router that is in connection status.The mobile router 162 of current connection is that the situation of mobile router (2) can be known from the connection request acknowledge message of mobile router (2) multicast during switching to mobile router (2) by preceding mobile router (1).

Next, when the priority ordering that is judged to be itself is higher than the mobile router (2) of current connection, Network Control Segment 191 informing network controllers 703.Network controller 703 is prepared links storage notification messages, notifies link-recovery true of external network and it is sent to mobile communication equipment 161 (step S3404).

In communication period, the network controller 203 of mobile communication equipment 161 is usually checked the reception (step S3301) that recovers notification message.If receive this message, whether mobile router selects part 171 to check as the priority ordering of the mobile router of the transmission sources that recovers notification messages 2204 than the mobile router higher (step S3302) of current connection.When priority ordering was low, processing finished.Yet when priority ordering was high, the router of giving tacit consent in routing table switched to the mobile router (step S3303) as the transmission sources that recovers notification message.

Then, the network controller of mobile communication equipment 161 203 produces connection request message 2205, and notice has the connection request that is provided with together as mobile router (2) identifier that connects the destination, thus multicast it (step S3304).

The network controller 703 of mobile router (2) is checked connection request message 2205 (step S3405).If this identifier is itself, then with mobile communication equipment 161 as transmission sources begin to communicate by letter (step S3406).Simultaneously, when the identifier that detects itself was not arranged in the connection request message, the network controller 703 of mobile router (1) stopped at present and the transmission of mobile communication equipment 161.

At will say, when receiving from the recovery of mobile router (1) notice, according to 204 information that receive, allow mobile communication equipment 161 not carry out the switching of above-mentioned destination conversion under less than the situation of scheduled volume in the traffic of current residual from high-rise processing section.

As mentioned above, in the present embodiment, when do not have with the mobile communication equipment of the device of external network direct communication when having to a plurality of mobile routers of the interface of this external network and external network communication, the characteristic of the business of handling according to this mobile communication equipment, it selects to be used to be delivered to the mobile router of this external network with priority ordering, so notifies this mobile router.Like this, allow the interface group of the optimization of mobile communication equipment specified services.Simultaneously, even when needing by new different interface executive communication owing to moving of communication zone, the interface that no thoroughfare does not satisfy this traffic performance communicates, this can be avoided worrying that the third party obtains relevant information by the exchange of this interface, worries the deterioration and the interference of worrying to communicate by letter with other mobile communication equipments of communication data quality.

Simultaneously, specify priority ordering by allowing mobile communication equipment in selecting connecting interface, the interface that can be implemented under the mobile communication equipment startup is selected.

And, when generation is unusual on the external network that the mobile router business is provided, can switch to the mobile router of next priority ordering.In addition, when the mobile router that more early takes place unusually at this external interface and interrupt connecting recovers, can regain connection.Therefore, in available communication environment at any time, can use mobile router with the external interface that is suitable for communicating by letter most.

At will say, in the present embodiment, judge at step S3403 mobile router whether itself priority ordering is higher than the current mobile router that is in connection status.Yet this is not restrictive, and just, it can check whether the priority ordering of itself is minimum, when not being minimum, and can multicast link-recovery information.This allows to carry out handover operation under the situation of the connection status that does not need to know other mobile routers.

The operation of explanation mobile router under the situation that is delivered to mobile communication equipment 161 from external network now.Figure 35 is the flow chart of explanation mobile router operation.

At first, network controller 703 is checked the reception (step S3501) that is assigned to the message of mobile communication equipment 161 from external network.Repeat this process up to receiving this message.

Under situation about receiving, communication request receives judges whether part 194 these communication request of judgement are receiving (step S3502) by the interface of selecting as the mobile communication equipment 162 of transmission destination.

Under the interface case of selecting, this communication request receives judges that part 194 indication network controllers 703 are transformed into the mobile communication equipment of communication request appointment.According to this indication, the data (step S3503) that network controller 703 conversions receive.Under the situation of interface that is not selection, this request of part 194 indication network controllers 703 refusals is judged in this communication request reception, so the response of transmission request refusal is to this external network.

This allows mobile communication equipment usually to communicate by the external interface of selecting, and therefore makes to transmit and communicating by letter of receiving by the interface of optimizing.

(embodiment 5)

Figure 36 is a configuration block diagram of representing mobile router in the present embodiment.The difference of the mobile router shown in this and the embodiment 4 has timer management part 361.In addition, mobile communication equipment, mobile communication system and external network have the structure that is similar to embodiment 4.

In Figure 36, timer management part 193 is used to manage a timer, select under the situation of message receiving from the candidate interface of

mobile communication equipment

161 or 162 multicasts of another mobile router, this timer is regulated the transmit timing of connection request acknowledge message.

Explanation now is used to connect mobile communication equipment 161 by judgement and arrives the operation of the mobile router 162 of external network 164 up to the communication beginning.Figure 37 is the operational flowchart of expression mobile router 162.Say at will that the operation of handling the mobile communication equipment 161 that begins up to communication from the reception of interface message notice is identical with the step S3101-step S3113 of embodiment shown in Figure 31 4.

At first, mobile router 162 detects the new inlet of mobile communication equipment 161.The processing that records the step S3201-step S3204 of the connection permission table that connects control section 191 is identical with the step shown in the embodiment 4.

Then, the connection control section 191 of the mobile router 162 search identifier that connects the permission tables and determine candidate's mobile router 162 whether be consistent (step S3701) with the identifier of itself.When satisfying this condition, connect control section 191 and under the control of timer management part 361, to timer is set the predetermined time (step S3702) based on priority ordering.This scheduled time is provided with shorter when priority ordering is high.

Then, the network controller 703 of mobile router 162 is checked the connection request acknowledge message (step S3703) that whether receives from another mobile router 162.When receiving this information, mobile router 162 judges that the priority ordering of another router is higher.Processing turns back to step S3201, therefore prevents from this moment to provide communication service.

Under situation about not receiving from the connection request acknowledge message of another mobile router 162, the past (step S3704) of 361 reviews time of timer management part.If the time not in the past, handles turning back to step S3703.

Under over and done with situation of time, timer management part 361 notices connect control sections 191.Therefore, connect the communication quality (step S3705) that control section 191 is checked external interface.Be judged to be when of poor quality, step turns back to step S3703, waits for that quality recovers.

When the communication quality of judging external interface is good, connect control section 191 informing network controllers 703.Therefore, network controller 703 produces connection request acknowledge message as shown in figure 26 and multicasts it to another router and mobile communication equipment (step S3706).At Figure 26 B, in mobile communication equipment identifier 2603, the identification code of mobile communication equipment is set when requiring this transmission.

The network controller 203 of mobile communication equipment 161 is checked the reception (step S3108) of connection request acknowledge message.After this, the processing up to communication beginning step S3113 is identical with embodiment 4.And mobile router 162 begins communication (step S3707).

Explanation now is used to connect mobile communication equipment 161 switches to mobile router (2) 162-2 from mobile router (1) 162-1 to the interface of the mobile router of external network 164 operation.

Figure 23 is the order of this operation of expression.Figure 38 is the operational flowchart of expression mobile communication equipment, and Figure 39 is the operational flowchart of expression mobile router.

When detecting the change of peripheral link state (step S3901), the peripheral link monitor portion 192 of mobile router (1) 162-1 in current outside the connection is prepared the interface message notification messages and is multicasted to mobile communication system 165 (step S3202) with 2301,2302.

When from another mobile router receiving interface information notification message 2302 (step S3801), the network controller 203 memory interface types 2003 of mobile communication equipment 161, mobile router identifier 2002 and Link State 2004 are to interface recording section 206 (step S3802).

Simultaneously, when receiving interface information notification message 2301 (step S3903), mobile router (2) is updated in corresponding to each bar information in the field that is recorded in the relevant mobile router identifier 2002 in the connection permission table that connects control section 191, just, interface type 2003 and Link State 2004 (step S3904).After this, mobile router (2) is judged the interface in connection status, and whether the identifier 2002 of the highest priority ordering of mobile router 162 conforms to the identifier of itself and judge whether peripheral link is in connection status (step S3905).If satisfy this condition, with itself mobile router alternatively with produce connection request acknowledge

message

2303,2304, and be multicasted to mobile communication system 165 (step S3906) with 2303,2304.

At step S3903, under network controller 203 was not received situation from the interface message notification message of another mobile router, its checked whether receive connection request acknowledge message 2304 (step S3907).If receive the connection request acknowledge message from mobile router (2) 162-2, mobile router (1) 162-1 stops the existing transmission with mobile communication equipment 161.Under the situation that does not receive the connection request acknowledge message, whether the communication of judgement finishes (step S3909).If do not finish, then handle and turn back to step S3901.

Simultaneously, if the network controller 203 of mobile communication equipment 161 receives connection request acknowledge message 2303 (step S3803), foundation is connected to communicate (step S3805) with mobile router (2) 162-2's.

As mentioned above, in the present embodiment, when not with the mobile communication equipment of the device of external network direct communication with external network communication during utilize and have when the mobile router of the interface of external network switches this mobile router, the mobile router multicast Link State before switching changes also notifies another mobile router.Therefore, when this mobile router self when correlation unit connect to allow the information of table to judge the highest priority ordering of mobile router, allow to switch.This can judge the connecting interface of setting up when the communication beginning from optimize professional interface group.Simultaneously, can prevent and the interface communication that does not satisfy these characteristics.In addition, can prevent to worry that the third party obtains relevant information by the exchange of this interface, the interference of worrying the deterioration of communication data quality and worrying to communicate by letter with other mobile communication equipments.

Simultaneously, in the present embodiment, when mobile router detects when business is provided interface externally unusual, notify other mobile routers by multicast.The hand-off process that information that receives according to mobile router and priority ordering can be carried out mobile router.This has eliminated the demand of the new traffic between mobile communication equipment and the mobile router, therefore can switch this mobile router fast.And, can prevent the obstruction situation in the network.

At will say, in the present embodiment, can specify in this mobile communication system separately identifier satisfactorily although be described as the identifier of IPv6 global address.This can be the IPv4 address, distribute to the number or the character string of mobile router or mobile communication equipment arbitrarily.

Simultaneously, matrix information in the present embodiment, type of service and importance parameter are that user by this mobile communication equipment is provided with respectively.Yet these are not determinate, can define by downloading from server yet, and this server is used for being provided at those information that external network provides.

In the present embodiment, though the interface that is used for being connected with network describes with IEEE802.11a, W-CDMA and PDC, but also can be the interface that connects this network, just, it can be a wave point, as IEEE802.11b scheme, IEEE802.11e scheme, CDMA2000 scheme, HIPERLAN scheme, PHS scheme, bluetooth scheme or UWB scheme, in addition, also can be wired solution, as Ethernet (R), ADSL, IEEE1394, USB or ATM.

Industrial applicability

As mentioned above, the present invention is useful for GSM, according to by the mobile communication equipment place The information of reason notify this mobile router and use be connected to network the best and when this so that mobile router The Link State of external interface be suitable for the external interface that continues to communicate by letter by switching when changing.

Claims

1. mobile communication equipment, by mobile router in the mobile communication system and external network communication, this mobile communication equipment comprises:

The type of service recording section is used to write down processed type of traffic;

The interface recording section is used for writing down type reception from the mobile router of mobile communication system and external interface external network, and this mobile router is relayed to this external network;

Interface decision section is used to select at least one or more a plurality of external interface that is suitable for this type of service; And

Translator unit, the first information that is used for this external interface that will select is notified to the mobile router of mobile communication system.

2. mobile communication equipment according to claim 1 also comprises:

Part is judged in priority ordering, is used to judge the priority ordering of selected external interface,

Wherein this translator unit produces and is added to second information of this first information with this priority ordering, and notifies this second information.

3. mobile communication equipment according to claim 1, wherein one group of external interface is to select in a plurality of external interfaces from this mobile router.

4. mobile communication equipment according to claim 2, wherein one group of external interface is to select in a plurality of external interfaces from this mobile router.

5. mobile communication equipment according to claim 2, wherein this interface recording section also writes down the link-state information of this external interface that is received, and this translator unit is added to this second information with this link-state information, therefore produces notice.

6. mobile communication equipment according to claim 1, wherein this type of service recording section records represent this type of service characteristic parameter importance and

This interface decision section is selected external interface based on this importance.

7. mobile communication equipment according to claim 6 has the function that the user changes one of this type of service and this importance at least.

8. mobile communication equipment according to claim 6, wherein this type of service recording section has the function that writes down this importance from this external network download.

9. mobile communication equipment according to claim 6, wherein the parameter that this interface decision section will be identical with this type of service parameter is as the parameter of representing this external interface characteristic, each external interface parameter also has the information of record priority ordering, and this external interface is based on this importance and priority ordering decision.

10. mobile communication equipment according to claim 9, wherein this type of service recording section has the function that the user changes one of this type of service, importance and priority ordering at least.

11. mobile communication equipment according to claim 9, wherein this type of service recording section has from this external network and downloads and write down any one at least function this importance and the priority ordering.

12. mobile communication equipment according to claim 1 also has the timer management of collection part, is used to manage the cycle that receives this external interface types from this mobile router,

Wherein after partly receiving the notice in the past scheduled time from above-mentioned collection timer management, above-mentioned interface decision section is selected external interface.

13. a mobile router comprises:

The interface type recording section is used to write down external interface types information as the interface message that is connected with external network;

The connecting interface recording section is used for receiving and the record link information, and this link information is used for judging the external interface that is used for this external network relaying from the external interface types information that mobile communication equipment receives;

Connect to judge part, judge that based on this link information whether relaying is from the communication of this mobile communication equipment; With

The router hop is used for this external interface types information of multicast, and produces to be notified to and be the selected mobile communication equipment of the judgement of relaying.

14. mobile router according to claim 13, wherein this link information has the type information of a plurality of external interfaces, and this connects judges part external interface of selection from these a plurality of external interfaces.

15. mobile router according to claim 14, wherein this link information is returned each external interface types and is added priority ordering, and

This connects detection unit and divides according to this priority ordering selection external interface.

16. mobile router according to claim 15 also comprises the timer management part, is used to manage judge the time that partly notice is relayed to this mobile communication equipment by connection,

Wherein after this past time, this connects judges that partly generation is notified, and priority ordering is high more, and this time is provided with short more.

17. mobile router according to claim 15 is that this connection judges that part allows relaying under the highest situation but wherein be in connection status and this priority ordering at this external interface.

18. mobile router according to claim 15, also comprise the peripheral link monitor portion, under the situation that the Link State of this external interface changes, by this router hop change notice mobile communication equipment and another mobile router with Link State.

19. mobile router according to claim 18, the information of the update notifications connection status that changes based on the Link State that receives from another mobile router of this connecting interface recording section wherein, and,

Externally interface allows this connection detection unit branch to carry out relaying according to the lastest imformation of connection status for but connection status and priority ordering are under the highest situation.

20. a mobile communication system comprises:

Mobile communication equipment comprises:

The interface recording section is used for writing down the type to the external interface of external network that receives from the mobile router of mobile communication system, and this mobile router is relayed to this external network;

Interface decision section is used to select to be suitable at least one or more a plurality of external interface of this type of service;

Translator unit, the first information that is used for the external interface that will select is notified to the mobile router of mobile communication system; And

Mobile router comprises:

The connecting interface recording section receives from the mobile communication equipment that receives said external interface type information and the record link information, and this link information is used for determining to carry out with the said external network external interface of relaying;

The router hop is used for this external interface types information of multicast and notice is the selected mobile communication equipment of judgement of relaying.

21. mobile communication system according to claim 20, link information in the mobile router of this system also adds the priority ordering on a plurality of external interface types and each external interface, this connects detection unit and divides according to this priority ordering selection external interface, this mobile router also comprises the peripheral link monitor portion, externally under the situation that the Link State of interface changes, by this router hop change notice mobile communication equipment and another mobile router with Link State; And

This mobile communication equipment also comprises priority ordering judgement part, be used to judge the priority ordering of selected external interface, the link-state information that this interface recording section records external interface further receives, this translator unit is added to the first information with this priority ordering and link-state information, notifies this mobile router thus.